Mechanical movement for cracker-cutting machines.



D. K. ALLISON & B. D. PINKNEY. MECHANICAL MOVEMENT FOR CRACKER CUTTING MACHINES.

APPLICATION FILED FEB 9, 19M.

Patented Dec. 28, 1915.

3 SHEETS-SHEET l.

TAB/$106886? 7 D. K. ALLISON & B. D. PLNKNEY. MECHANICAL MDVEMENT FOR CRACKER CUTTING MACHINES.

APPLICATION FILED FEB. 9. 1914.

1165,37. Patented Dec. 28, 1915.

3 SHEETSSHEET 2.

Wif/nesses M/W fizz aw I [nvmiars D. K. ALLISON & B. D. PINKNEY.

MECHANICAL MOVEMENT FOR CRACKER CUTTING MACHINES.

APPLICATIION FILED FEB; 9, 1914.

3 SHEETS-SHEET 3.

Fig.5.

r J r Witnesses Inventors UNTT STATE PATENT @FFTQE.

DANIEL K. ALLISON, OF CINCINNATI, OHIO, AND BRYAN D. PINKNE'Y, OF IIE'WPORT,

KENTUCKY, ASSIGNORS TO THE 3'. H. DAY COMPANY, OF CINCINNATI, OHIO, A COR- PORA'IION OF OHIO.

MECHANICAL MOVEMENT FOR CRACKER-CUTTING MACHINES.

Specification of Letters Patent.

Original application filed August 3. 1912, Serial No. 713,029. Divided and this application filed February 9, 1914. Serial No. 817,420.

To all whom it may concern.

Be it known that we, DANIEL K. ALLIsoNf residing at Cincinnati, in the county of Hamilton and State of Ohio, and BRYAN D. Przvirrinr, residing at .Newport, in the county of Campbell and State of Kentucky, citizens of the United States, have invented a certain new and useful Mechanical Movementfor Cracker-Cutting lWlachines, of which the following is a specification.

Our invention relates to that type of mechanical movements which are applicable to pan skips of cracker cutting machines and its object is to provide a mechanical movement which will be positive in its operation and which will, when applied to pan delivering convevers of a cracker cutting machine, cause them to skip in proper register with cooperating parts thereof.

Our present invention is a division of our application for an improvement in cracker cutting machines, Serial No. 713,029 filed Aug. 3, 1912.

In the accompanying drawings Figure 1 is a side elevation of a portion of a cracker cutting machine; Fig. 2 is a partial view of gears 7 and 8 showing the pan skipping device; Fig. 3 shows .similar parts to Fig. 2; Fig. 4 also shows similar parts to Figs. 2 and 3; Fig. 5 is a plan view of our machine. Fig. 6 shows a velocity curve referred to in connection with the pan skip mechanism.

The machine is mounted within the side frame 1-1. The transverse shaft 2 is journaled in the side frames and has keyed thereto the gear pinion 3 which meshes into and drives gear 4, which, in turn, is keyed to shaft 5. Said transverse shaft 5 is also journaled in said side frames 11. verse shaft 6 is also journaled in said side frames 1-1. The pinion 7 is keyed to shaft 5 and drives gear 8 which is keyed to shaft 6. By reference to Figs. 2, 3, and i the operation of pinion 7 and gear 8 may be clearly set forth. During its normal action the gear teeth of the two gears will intermesh but part of the teeth of the gear 8 are cut away, as shown in said figures. The

pinion 7 drives gear 8 and when the last tooth is engaging as shown in Fig. 2, the roller 9; is beginning to enter the cam race 10 which is formed by the cam plates 11 and Trans- 12 which are fastened to the side of the said gear 8. Roller 9 is mounted on and carried by the rotating arm 17, which is secured to and rotates with said pinion 7. Said roller 9 will now drive the said gear 8 in the direction indicated by the arrow and in its course will approach nearer to the center of the said gear 8, its line of travel being indicated by the dashed curved line 13. The velocity of said gear 8 is accelerated by the roller 9 until said roller has reached the position closest to the center of said gear 8, illustrated by Fig. 3, and afterward its velocity is retarded till the said roller leaves the cam race as shown in Fig. 4-, when the gear teeth will come into mesh again. To illustrate the action of the said roller and cam plates u on the velocity of said gear 8, we have shown in Fig. 6 a diagram, the longitudinal lines of which represent a development of one rotation of gear wheel 8 and the cross lines represent degrees of ve locity. The heavy line represents the velocity curve of said gear 8 during one rotation. At the edge of the diagram the velocity is normal, being driven by the teeth of the pinion 7 and remains so till near the center of the diagram. Here it curves upward gradually. This occurs when the roller enters the cam race. The velocity increases till the curve reaches the highest point in the center of the diagram and from there on the velocity is retarded till the line drops to the normal velocity line. It will be noted that the velocity is accelerated gradually until the greatest velocity is reached and then retarded gradually till normal velocity is reached corresponding in smoothness to the curve in the velocity line. This smoothness of accelerated velocity is accomplished by the particular angle of the cam race 10. The said cam race must be so positioned that a line drawn centrally through it will form an angle with a radial line of the gear 8 passing through the center of the roller 9 and the saidangle will be on the side of said radial line opposite to the direction of travel of the said roller The sprocket wheel 14 is keyed to shaft 6 and is used to drive chain 15, which in turn. drives the endless conveyor chains 16l6 shown in Fig. 1. The operation of our in- Patented Dec. as, rare.

short distance at a speed above theirrnormal movement.

vention is as follows; power is applied to shaft 5 in any suitable manner. In Fig. 1 we have shown the same source of power as that employed in Fig. 1 of the patent application filed Aug. 3, 1912, Serial No. 713,029

7 for a cracker cutting machine, of which this This is done to keep the biscults, as they are deposited upon sald pans, from falling between the pans or upon them edges, Thls feature 1s old and well known in the art and is merely mentioned here to show the utility of our present invention. During the normal travel of the conveyer chains l6-16 the pinion 7 is driving gear 8 by means of their lntermeshing teeth but when the conveyer chains take on an acceler ated velocitv to skip the pans the gear wheel 8 is being driven at a higher velocity by Copies of this patent may be obtained for means of the rotating arm 17 .and roller 9, as heretoforedescribed. V

Having described our invention, what we claim as new and desire to secure by Letters Patent is:

v1. A- mechanical movement for a cracker cutting machine composed of a wheel provided with a cam race, a rotating arm carrying a roller which plays in said cam race and thereby imparts accelerated and retarded motion to said wheel said cam race being so positioned that a radialiine Von -sa1d wheel passing through the center of said roller is angular with thepath. of said "Cain race.

2. A mechanical movement for a cracker cutting; machine composed of a gear wheel provided with a cam race, a pinion meshing lnto and normally drivlng said .Q'ear wheel and a rotating arm carrying a roller which" plays into said cam race and lmparts varied motion to said gear wheel.

DANIEL K. BRYAN PINKNEY.

Witnessesz V F. A. HASSMANN, WM. Hus'r.

five cents each, by addressi the commiSsioner of ts? Washington, D. Q, g p 7 ALLISON. 

